Value Collection R40322402 Set Screw 3/8-16 X 1/2 in Cup Point Ss

Product Description

The VALUE COLLECTION R40322402 is a 3/8-16 x 1/2 inch cup point set screw machined from Grade 18-8 stainless steel. Set screws are fully threaded fasteners with no head, designed to secure a component — such as a collar, pulley, or gear — against a shaft by direct point-to-surface contact. The cup point configuration bites into the mating surface to resist rotational and axial movement without the need for a through-hole. A 3/16 inch hex drive is used for installation. At 0.011 pounds per unit, this screw is lightweight and suited for precision assemblies where mass is a consideration.

This set screw is used across industrial, mechanical, and trade applications wherever a headless fastener is required to lock a rotating or sliding component to a shaft. Common installation scenarios include HVAC blower wheel hubs, motor shaft collars, pump impeller assemblies, and general mechanical hardware. The 3/8-16 UNC thread standard ensures broad compatibility with standard inch-series tapped holes. Grade 18-8 stainless steel provides corrosion resistance suitable for wet, humid, or mildly corrosive environments.

Key Features

• Cup point design bites into shaft material to resist rotation and axial movement
• 3/8-16 UNC thread for compatibility with standard inch-series tapped holes
• Grade 18-8 stainless steel construction for corrosion resistance
• 3/16 inch hex drive for use with standard Allen keys or hex bit drivers
• 1/2 inch overall length suits medium-depth engagement applications

Compatibility

Designed as a standard inch-series set screw for use in any application requiring a 3/8-16 UNC headless fastener with a cup point and 3/16 inch hex drive.

Installation Notes

Installation requires a 3/16 inch hex key or Allen driver. Ensure the tapped hole is clean and free of debris before threading the screw in by hand to confirm proper thread engagement. Power down or de-energize any equipment before servicing shaft-mounted components. Do not exceed the torque capacity of the stainless steel alloy — avoid impact drivers, which can seize or gall 18-8 stainless threads.